Pipe-coupling.



Patented Nov. 4,1902.

C. L. lWILNIOT;l PIPE 'couPLma .Application med im. 2s, 1901. (No Model.)

WITNESSES Y INVENTOR PATENT OFFICE.

CLARENCE L. WILMOT, OE PITTSBURG, PENNSYLVANIA, ASSIGNOR TO CARNEGIE STEEL COMPANY,

OF PITTSBURG, PENNSYLVANIA, A

CORPORATION OF PENNSYLVANIA.

PIPE-C'KOUPLING.

`S19ECIFIGATJION forming part of Letters Patent No. 713,036, dated November 4, 1902.

Application filed March 287.1901. Serial No. 53,267. (No model.)

T0 a/ZZ whom it may concern: Y

Be it known that I, CLARENCE L. ,WILMOE of Pittsburg, in the county of Allegheny and State of Pennsylvania, have invented a new and useful Pipe-Coupling, of which thevfollowing is a full, clear, and exact description, reference being had to the accompanying drawings, forming part of this specification, in which- Figure lis a central cross-section of a joint provided with my improved coupling. Fig; 2 is an end elevation Vof .the'jointwith the pipe in section. Fig. 3 is an enlarged transverse section showing a portion of the'joint. Fig. 4 is a broken detail view showing the outer face of the coupling-ring; and Fig. 5 is a View similar to1Eig.'3, showing a modified form arranged for use with ordinarybolts.

My invention relates to couplings employed for connecting the ends of thin or light Walled tubing; and its object is to provide a simple,

cheap, and ecient coupling which can -be' easily applied and removed Without disturbing other joints of the pipe.

To that end it consists in a compressible ring or gasket, a compressing-ring having an annular projection to engage and expand or distort the gasket, and a coupling-ring engaging the opposite face of the gasket and connected with the compressingring.

It also consists in the construction and arrangement of the parts, as hereinafter moreA fully described, and set forth in the claim.

In the drawings, referring to the forms'of Figs. l to 4, inclusive, 2 represents a compressible gasket or packing-ring, which may be made in' one or more pieces and is preferablyformed of rubber or rubber composition.

his ring is arranged to fit neatly around the registering edges of the pipes, and against one of its end faces is pressed a compressingring 3, having an'annular projection 4, preferably of general V-form, which is forced into the gasket to compress and distort it evenly against the'pipe.

An outer metal coupling-ring 5 surrounds the gasket and at least a portion of the compressing-ring and is provided With an inwardly-projecting ring portion 6, having an angular projection 7, arranged to engage the end face of the gasket. The coupling-ring is provided with hollow ribs or bosses 8 to receive hook-bolts 9, the hook portions of which engage the outer portion of the compressingring. The coupling-ring and the compressing-ring 4may both be cored outror provided with arc-shaped recesses 10,.Which serve to lighten -these parts .and reduce their cost.

The bosses or hollow ribs also serve this same` purpose and enable the coupling-ring to be made of less thickness than would otherwise be possible. I

In using the device the coupling parts are assembled about the ends of the pipe in the manner shown in Fig. 3, and the nuts being screwed up the projections on the couplingring and compressing-ring are forced into the gasket, distorting and compressing it against the end portion ofthe pipe and eectually sealing the joint.

In Fig. 5 I show a modified form wherein the compressing-ring 3 is provided with an outwardly-extending iiange portion v11, having perforated bosses l2 to receive ordinary straight bolts 9. Otherwise this form is similar to that of the preceding figure, the action being the same in both cases.

The advantages of my invention result from the simplicity and small number of parts of the coupling and from the effective sealing of the joint and the ease of removingand replacing Without disturbing the other joints along the line.v

The metal rings of the coupling may be made in one or more parts, and the form and size of the several parts, together With their material, may be varied Without departing from my invention.

I claim- A pipe-coupling comprising a compressible gasket arranged to surround thejoint, a coupling-ring of greater Width than the gasket and surrounding it, said coupling-ring having an inwardly-projecting annulus engaging an end face of the gasket, an annular compressing- In testimony whereof I have hereunto set ring between the coupling-ring and the pipe my hzmd. and having an annui-(Lr projection arranged CLARENCE T 7H MOT to be forced into the gasketand hook-bolts eX- tending through the coupling-ring with their l Witnesses:

i hooked ends engaging with the eompressingl I-I. M. CORWIN, ring; substantially as described. l

G. B. BLEMING. 

